Are you for real?
Are you for real?
An MP3 only has artificial scarcity. The energy it costs to copy an MP3 is infinitesimal. The point of the artificial scarcity is to allow the artist to make money by selling his information. In an economy with no scarcity, this doesn't work. The artist needs to make money by selling something that is scarce, like a live performance.
If the artist wants to keep people from selling music they've produced, they're free to do so, by not selling it or giving it away. When they've sold something, however, it's not up to them to control another's actions indefinitely.
Obviously this is heavily at odds with current law where I live, but fortunately it's easy to get around said law by using licenses which give legal weight to rights a person should have with respect to easily copied materials.
When you purchased their music, you most likely entered an agreement not to reproduce/distribute it.
That doesn't mean US courts won't enforce it anyway, of course. :( Eventually that will change, I expect.